DETECTING THE DIRECTION OF ACOUSTIC SIGNALS WITH A FIBER OPTICAL DISTRIBUTED ACOUSTIC SENSING (DAS) ASSEMBLY - Patent 2656112

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EP 2 656 112 A2

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(88)	Date of publication A3:
	04.04.2013

(43)	Date of publication:
	30.10.2013 Bulletin 2013/44

(21)	Application number: 11802407.4

(22)	Date of filing: 20.12.2011

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International Patent Classification (IPC):

G01V 1/18^(2006.01)

G01H 9/00^(2006.01)

(86)	International application number:
	PCT/EP2011/073471

(87)	International publication number:
	WO 2012/084997 (28.06.2012 Gazette 2012/26)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

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Priority:

21.12.2010 EP 10196253
21.07.2011 EP 11174781

(71)	Applicant: Shell Internationale Research Maatschappij B.V.
	2596 HR Den Haag (NL)

(72)	Inventor:
	LUMENS, Paul Gerard Edmond NL-2288 GS Rijswijk (NL)

(74)	Representative: Matthezing, Robert Maarten et al
	Shell International B.V. Intellectual Property Services P.O. Box 384 2501 CJ The Hague 2501 CJ The Hague (NL)

(54)	DETECTING THE DIRECTION OF ACOUSTIC SIGNALS WITH A FIBER OPTICAL DISTRIBUTED ACOUSTIC SENSING (DAS) ASSEMBLY